Curious Traveler

Curious Austrian Christmas Markets (3x8)

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Why is a European Christmas Market also called Weihnachtsmarkt or a Christkindlmarkt? And what do these markets have to do with the Holy Roman Empire? Why do you find Christmas Markets mostly in German-speaking countries? What is the curious history of the Advent Wreath, of Silent Night, and a creepy Christmas character named Krampus? And is a Krampus different than a Krapfen?